Vibrating device.



No..859,866. Q PATBNTBD JULY 9. 1907. 0. H. ATKINS. VIBRATING mzv cn.

nruwuon rmm no. a. 1906.

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PATENTED JULY 9, 1907.

c. 1;. ATKINS. VIBRATING nnvmn. APPLICATION FILED 1330.6, 1906- 5sums-51mm 3.

1n: NORRIS PETERS ca., wasnmsrolv, n. c.

No. 859,866. PATENTED JULY 9, 1907.

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VIBRAT'ING DEVICE. APPLIOATIOH FILED D30 6 I906 5 SHEETS-SHEET 4.

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TEE NORRIS PETERS cm, WAsMluaroN, n. c.

PATBNTED JULY Q, 1907.

' VIBRATINGDEVIGE. APPLICATION FILED DBO 5 1906 5 SHEETS-SHEETInca/2:227;

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UNITED STATES CHARLES HENRY ATKINS, OF SPRINGFIELD, MASSACHUSETTS.

VIBRATING DEVICE.

Specification of Letters Patent.

Patented July 9, 1907.

Application filed. December 5, 1906. Serial No. 346,398.

To all whom it may concern:

Be it known that 1, CHARLES HENRY A'rxms, a citizen of the United Statesof America, and a resident of Springfield, in the county of Hampden andState of Massachusetts, have invented certain new and usefulImprovements in Vibrating Devices, of which the following is a full,clear, and exact description.

This invention relates to a vibrating mechanism primarily designed foroperating the vibrator or shaker of a Fourdrinier paper machine, withcapability, by effecting changes or relations of parts included withinthe mechanism, of varying the lengths of the vibrations or strokes; butthe present improved mechanism is applicable for employment insituations other than in connection with a paper machine.

An important object of the invention is to provide a variable vibrationimparting mechanism including a revoluble eccentric, in which parts forregulating the lengths of the vibratory strokes may be operated whilethe eccentric continues to revolve, without any stoppage of themechanism or machine with which'it is connected. And other objects areto construct the vibrating mechanism in a simple and practical mannerand so that it will be reliable during protracted periods of operationfor imparting exactly the character of vibrations for which it may beadjusted.

The invention is hereinafter described in a preferred design thereof, inconjunction with the accompanying drawings.

In the drawings,-Figure 1 is a plan view-of the vibrating device shownin its relation to a small portion of the vibrator of a paper machine.Fig. 2 is a sectional elevation, on a larger scale, as taken on line2-2, Figs. 1 and 3. Fig. 3 is a central vertical section as taken online 3-3, Fig. 1. Fig. 4 is a sectional elevation as seen on and beyondthe plane indicated by line 4-4, Fig. 1. Figs. 5 and 6 are horizontalsectional views through the mechanism at the portion thereof in whichthe eccentric and the eccentric strap and rod are comprised,these viewsbeing identical with the exception that Fig. 6 shows the eccentric rodand strap slightly oscillated, on a horizontal plane, from the positionin which the same element is represented in Fig. 5. Figs. 7 and 8, 9 and10, and 11 and 12 are pairs of views showing varied positions of theparts of the compound eccentric and the means for varying theirrelations, the upper views of this said set showing the eccentricsfacewise while the lower views are sections taken similarly to Fig. 3.

Similar characters of reference indicate corresponding parts in all ofthe views.

This mechanism comprises a horizontal shaft A and a pulley 13 fastthereon, for rotating it by belt G.

0 represents an eccentric having therewith an extended hub-like sleeve 0which latter with the eccentric proper loosely surrounds the shaft,

integrally formed the eccentric having its position closely alongsidethe ,face of the pulley.

I D represents an eccentric ring, as herein termed, the same being inthe form of a disk or wheel having ieccentrically therein an opening toclosely fit the ec-' centric O. This eccentric ring is caused to rotatein unison with the pulley through means of the-link E, one end of whichis pivoted to the face of the pulley and the :other to the face of theeccentric ring.

' An intermediate portion of the shaft, and the eccentric sleeve looselysurrounding it are loosely passed through and beyond a stationarytubular journal bearing a supported by the standard I), while anotherportion of the shaft is supported in a journal bearing a at the oppositeside of the pulley from that at which the eccentric and eccentric ringare located, said latter journal bearing being supported by the standardb 'The stationary tubular journal bearing a has external screw threads0. Adjacent portions of the shaft and sleeve are constructedrespectively with a straight longitudinal way din the shaft, and ahelical slot,-or duplicated opposite helical slots f,-in the sleeve. Inpractice, and preferably, although not necessarily, the way d in theshaft is made in the form of a slot extended through the shaft.

An element H capable of revolving in unison with the eccentric sleeveand shaft and also capable of an independent movement along the line ofthe axis of these parts and having associated therewith a stud g whichpasses through the helical eccentric sleeve slot, and engages within thestraight longitudinal way in the shaft, constitutes a means for causingthe sleeve and eccentric to partake of the revoluble movement of theshaft, and yet to enable said element, on being axially moved, throughimpingement of its stud against the boundaries of the helical slot, toimpart a rotative movement to the sleeve and eccentric relatively to theshaft, and independently of and additional to the rotary movement of theshaft. This rotative movement of the sleeve which may be imparted whilethe sleeve and shaft are rapidly turning, changes the position of theeccentric within and relatively to the eccentric ring so that the lattermay have the eccentricity thereof in relation to the axis of the shaft,much or little as may be desired, for the accomplishment of long' orshort vibratory strokes to the part with which the rod is connected orengaged.

In the present instance, the aforementioned element H is provided in theform of a collar fitting and slidable endwise along the eccentricsleeve, and diametrically oppositely engaged, within apertures therein,by roller surrounded ends of the stud g, the rollers 9 havinganti-friction bearings in the opposite sleeve slots, while theintermediate oppositely slabbed portion of the stud engages transverselythrough and within the straight longitudinal shaft slot.

and depends from the top of the collar at the plane of revolution ofsaid stud, and is in contact with opposite endsof the stud and itsroller (which are flush with the periphery of the collar) at every halfrevolution'of the stud.

cry of the collar, and also are approached to overlap portions of theends of the studs and surrounding collars, serving to keep the collarsfrom being centrifugally thrown from the ends of the studand to keep theoil ring at the proper median plane so that the oil carried by the ringupwardly will be conveyed to the proper point for lubrication 'of thestud and its roller,

and result in a lubrication of the boundaries of the heli-' cal andstraight slots in the eccentric sleeve and shaft. As shown in Fig. 3,the chambered casing which constitutes the body of the yoke is made inmatched sections 0 and 0 united by the screws 0 ,-the screw holes o forwhich are indicated in Fig. 2 in which view the outer end yoke section 0is understood as removed.

The annular chambered yoke body has formed as a part thereof a handwheel to facilitate the turning of the yoke for acquiring a screw feedalong its axial line of the normally immovable yoke, for correspondinglymoving the collar H and sleeve rotating stud for varying the position ofthe eccentric G relatively'to the eccentric ring D. Y

L represents a nut made in the form of a hand wheel and in engagementwith'the screw threads 0 of the tubular journal support a for being setup against the end of the hub j of the yoke and to lock'the same againstbeing unduly rotatively moved whereby the proper adjustment of theeccentric would become deranged.

In Figs. 7 and 8 the yoke is moved to place the stud g at the oppositelyldcated extreme left hand ends of the helical slot f in the sleeve,resulting in bringing the portion of the eccentric having the greatesteccentricity alined with the portion of the eccentric ring also havingthe greatest eccentricity, wh ereby the composite eccen tric having amaximum eccentricity t0 the shaft is acquired to result in imparting,through' the eccentric strap, the longest vibratory strokeswithinthescope of the present mechanism.

In Figs. 9 and 10 the stud is in an intermediate position relatively tothe sleeve slots f so that the eccentric line of the eccentric is atright angles to the eccentric line of the eccentric ring; and thus theresultant character of the composite eccentric is modified to impartvibratory. strokes of a medium length; and in Figs. 1].

the part to which the eccentric strap is connected or the manner ofa'ball joint; and in Fig.

The lips n inwardly extended from'opposite sides of the chambered yokecasing'overlap and lit the periphengaged. And, of course, there areendless relative po- .sitions between those represented in Figs. 9l0,and Figs. 78, or Figs. 11-12, for the acquirement of medium-long .ormedium short vibratory strokes.

In Figs. 1, 5 and 6 the periphery of the eccentric ring is representedas convex on the curvature of a true sphere, and the inner circular wallof the eccentric strap N made'as one with the eccentric rod N iscorrespondingly concaved', so'that under oscillatory motions which thevibrator P may have the eccentric and its strap mayoscillate on theperiphery of the eccentric ring in i 6 the eccentric strapis shown ashaving been oscillated from the position shown in Fig. 5 to accord witha slightly swung posine-nor the vibrator P;

it is to be appreciated that in this improved mechanism'it is possible,and entirely convenient, to change the relation of the eccentric withinthe eccentric ring ,while the shaft and eccentric sleeve are rapidlyrotated;

and, therefore, as is especially advantageous ina paper fmachine, theextents of the vibratory movements of the shaker or vibrator may bevaried at any time to ac- ;cord with'paper making requirements ordesirability, g'without necessitating any stopping of the papermafchine,the shaft A being understood as the driving shaft of themachine, or a shaft driven continuously in funis on with'such' shaft.

I claim:

,in an extended sleeve loosely surrounding the shaft, ad-' ija'centportions of the shaft and sleeve being constructed jrespectively with'astraight longitudinal way in the shaft {and a helical slot through thesleeve, an eccentric ring fencircling the eccentric, and means {theshaft, an'element revoluble with, and endwise movable relatively to thesleeveand shaft, a stud extended throughthe sleeve slot and engagingwithin the shaft way; :and means for adjusting said tudinally of thesleeve and shaft.

3 2. In a device of the character described, in combina- 'on;'a"shaftand meansfo'r rotating it, aneccentri'c-haw iingadextended sleeveloosely surrounding the shaft, ad-

jacent'porti'ons of-theshaft and sleeve'being constructed respectivelywith a straight longitudinal way in the shaft and a helical slot throughthe sleeve, an eccentric ring encircling the eccentric, and 'means forrevolving it with 'the shaft, acollar surrounding, revoluble with, andend- Wise movable relatively to the sleeve and shaft, a stud extendedthrough the sleeve slot and engaging within the shaft way, a partadjustable lengthwise of the shaft and sleeve, comprising an"annularyoke which engages said collar.

3. In a device of the character described, in combination, a shaft andmeans for-rotating it, an eccentric haV-' .ing an extendedsleeve-loosely surrounding the shaft, ad jacent portions of the shaftand sleeve being constructed respectively with a straight longitudinalway in the shaft and a helical slot through the sleeve, a' tubular screwthreaded journal bearing througlrand beyond which the shaft and sleeveare extended, an eccentric ring encircling the eccentric, and means forrevolving it with the shaft, acollar, surrounding, revoluble with, andendwise movable relatively to, the sleeve and shaft, :1 stud' extendedthrough the sleeve slot and engaging withinthe shaft Way, and an annularyoke embracingand engaging said :collar, and having a tubular hubloosely encircling the sleeve and screw engaging said tubular journalbearing.

4. In a vibrating device, in"combination;' a shaft and for revolving itwith element and its stud longi-' slot through the sleeve, a tubularexternally screwlar journal bearing, and a locking nut having a screwthreaded journal bearing through and beyond which the thread engagementon said tubular journal bearing and shaft and sleeve are extended, aneccentric ring encircling adapted to be set against the end of thetubular yoke-huh.

the eccentric, and means for revolving it in unison with Signed by me atSpringfield, Mass, in presence of two 5 the shaft, a collar,surrounding, revoluble with, and end- Subscribing witnesses.

Wise movable relatively to, the sleeve and shaft, a stud CHARLES HENRYATKINS extended through the sleeve slot and engaging within the shaftway, an annular yoke having an embracing engage- Witnesses:

ment about said collar, and having a tubular internally WM. S. Bnnnows,

10 screw threaded huh, a screw-engaging said threaded tuhu- G. R.DRISCOLL.

